Question

Calcular:
para hoy pleace

Answer 1

Explicación paso a paso:

Usando :

• (a-b)(a+b)= a²-b² , se resuelve

A = Raiz[(x²-12²)+(13²-x²)+(5+x)(-(5-x))+(3+x)(3-x)]

A=Raiz[(x²-12²)+(13²-x²)-(5²-x²)+(3²-x²)]

A=Raiz[x²-144 + 169 -x² - 25 + x² + 9 - x²]

A=Raiz[x²+x²-x²-x²+9]

A=Raiz[9]

A= ±3

Saludos .